Optical, Physical and Quantum Properties of Gold Nanoparticles and its Applications in Diagnosis and Treatment of Cancers

Today, it has been shown that gold nanoparticles have great potential to improve diagnosis and treatment of cancers. The special advantages of gold nanoparticle are high biocompatibility, selective accumulating at cancer cells and low toxicity. Considerable research is underway into the use of gold nanoparticle as contrast agent in Raman spectroscopy, X-ray imaging, photo-thermal agents and radiosensitizers. In this study, optical and physical and quantum properties of gold nanoparticle are discussed. Subsequently, medical application of gold nanoparticle, as a dual use in diagnosis and treatment of cancers, are considered.